.hljs-cto{
    position: relative;
}
.copy_btn{
    position: absolute;
    top: 10px;
    right: 10px;;
    z-index: 99;
    background-color: #e8eefe;
    font-size: 12px;
    color: #3e71f6;
    /* min-width: 52px; */
    height: 23px;
    line-height: 24px;
    border-radius: 2px;
    cursor: pointer;
    padding: 0 14px !important;
}